Window/door jammer



FIG. 1 is a top perspective view of window/door jammer showing my new design;

FIG. 2 is a right and elevational view; and

FIG. 3 is a side elevational view;

FIG. 4 is a top plane view; and,

FIG. 5 is a bottom plane view. 

The ornamental design for a window/door jammer, as shown and described. 